.pay-wrapper {
    background-color: #f3faef;
    border: 1px solid #aacaa0;
    width: 680px;
    margin: 40px auto;
    padding: 30px;
    font-family: "Microsoft Yahei", sans-serif;
    color: #333;
    border-radius: 6px;
}

.pay-title {
    font-size: 20px;
    font-weight: bold;
    color: #105f26;
    margin-bottom: 15px;
    text-align: center;
}

.pay-platform {
    margin-bottom: 20px;
    font-size: 14px;
    color: #555;
}

.alipay-logo {
    height: 32px;
    margin-left: 10px;
    vertical-align: middle;
}

.section-title {
    font-size: 16px;
    font-weight: bold;
    color: #333;
    margin-bottom: 10px;
}

.radio-group {
    margin-bottom: 20px;
}

.radio-item {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    color: #222;
}

.custom-input {
    width: 80px;
    margin-left: 10px;
    padding: 4px 6px;
    border: 1px solid #aaa;
    border-radius: 4px;
}

.subject-line {
    margin-bottom: 15px;
    font-size: 14px;
    color: #333;
}

.subject-input {
    width: 300px;
    margin-left: 10px;
    padding: 4px 6px;
    border: 1px solid #aaa;
    border-radius: 4px;
}

.notice {
    color: #e60012;
    font-size: 14px;
    margin-bottom: 20px;
}

.highlight {
    font-weight: bold;
    color: red;
}

.btn-wrapper {
    text-align: center;
}

.pay-button {
    padding: 8px 20px;
    background: linear-gradient(to bottom, #f90, #f60);
    border: 1px solid #e68600;
    border-radius: 6px;
    font-size: 16px;
    color: white;
    cursor: pointer;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}

.pay-button:hover {
    background: linear-gradient(to bottom, #ffa733, #ff7700);
}